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1. |
Record Nr. |
UNINA9911092364203321 |
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Titolo |
Barrier properties of polymer clay nanocomposites / / Vikas Mittal, editor |
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Pubbl/distr/stampa |
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New York, : Nova Science Publishers, c2010 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (283 p.) |
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Collana |
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Nanotechnology science and technology series |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Nanocomposites (Materials) |
Polymer clay - Barrier properties |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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""BARRIER PROPERTIES OFPOLYMER CLAY NANOCOMPOSITES""; ""CONTENTS""; ""PREFACE""; ""BARRIER PROPERTIESOF COMPOSITE MATERIALS""; ""ABSTRACT""; ""1.1. INTRODUCTION""; ""1.2. THEORY OF PERMEATION""; ""1.3. PERMEATION THROUGH HETEROGENEOUS MEDIA""; ""1.3.1. Laminates""; ""1.3.2. Materials with Plate-Like Inclusions""; ""1.4. MODIFIED PERMEATION MODELS""; ""1.5. MEASUREMENT OF BARRIER PERFORMANCE""; ""1.6. TRANSPORT MECHANISM ANDDIFFERENT POLYMER SYSTEMS""; ""REFERENCES""; ""COMPATIBILIZATION OF INTERFACES INNANOCOMPOSITES: ROUTE TOWARDSBETTER BARRIER PROPERTIES""; ""ABSTRACT"" |
""2.1. INTRODUCTION""""2.2. CONVENTIONAL NANOCOMPOSITES AND NEED OF NEW SYSTEMS""; ""2.3. GRAFTING �TO� THE SURFACE APPROACH""; ""2.4. GRAFTING �FROM� THE SURFACE APPROACH""; ""2.5. GRAFTING USING CONTROLLED LIVINGPOLYMERIZATION APPROACH""; ""2.6. POLYOLEFINS GRAFTING �FROM� THE SURFACE""; ""REFERENCES""; ""BARRIER PROPERTIES OF POLYURETHANENANOCOMPOSITES AND THEIR RELATIONSHIP TOSHAPE MEMORY PROPERTIES""; ""ABSTRACT""; ""3.1. INTRODUCTION""; ""3.2. TRANSPORT PHENOMENA IN PRISTINE POLYMERS""; ""3.2.1. Early Developments""; ""3.2.2. Basic Relationships"" |
""3.2.3. Nature of the Penetrant""""3.2.4. Nature of the Polymer""; ""3.2.4.1. Effect of Chemical Constituents and the Presence of Chemical Cross-links""; ""3.2.4.2. Effect of Crystallinity""; ""3.2.4.3. Effect of |
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Chain Orientation""; ""3.3. TRANSPORT PHENOMENA IN MICROANDNANO-COMPOSITES""; ""3.4. CONTINUUM MODELING OF TRANSPORTPROPERTIES OF POLYMER COMPOSITES""; ""3.5. PERMEABILITY OF POLYURETHANES (PU) ANDPOLYURETHANEUREAS (PUU): STRUCTURE-PROPERTYRELATIONSHIPS""; ""3.5.1. Transport Mechanisms""; ""3.5.2. Effect of Soft Segment Type, Its Composition, and Molecular Weight"" |
""3.5.3. Effect of Hard Segment Content and the Extent of Phase Separation""""3.5.4. Effect of Penetrant Type""; ""3.6. PERMEABILITY OF FILLED POLYURETHANES ANDPOLYURETHANEUREAS: MICRO- AND NANOCOMPOSITES""; ""3.7. IMPORTANCE OF TRANSPORT PHENOMENONIN SHAPE MEMORY POLYMERS""; ""3.7.1. Importance of Mass Transfer in SMP:Actuation by Water Absorption in Surgical Procedures""; ""3.7.2. Importance of Mass Transfer through SMP:Textile Fabrics and Refrigerators""; ""3.8. CONCLUSIONS""; ""3.9. ACKNOWLEDGEMENTS""; ""REFERENCES""; ""PERMEATION PROPERTIESOF EPOXY NANOCOMPOSITES""; ""ABSTRACT"" |
""4.1. INTRODUCTION""""4.2. MODELING OF THE PERMEABILITY OF NANOCOMPOSITES""; ""4.3. PERMEABILITY OF EPOXY NANOCOMPOSITES""; ""4.3.1. Effect of Nanoplatelet Loading""; ""4.3.2. Effect of Nanoplatelet Dispersion""; ""4.3.3. Effect of Nanoplatelet Aspect Ratio""; ""4.3.4. Effect of Nanoplatelet Orientation""; ""4.3.5. Control of Nanocomposite Morphology""; ""4.4. CONCLUSIONS""; ""4.5. ACKNOWLEDGMENTS""; ""REFERENCES""; ""BARRIER PROPERTIESOF POLYOLEFIN NANOCOMPOSITES""; ""ABSTRACT""; ""5.1. INTRODUCTION""; ""5.2. BARRIER PROPERTIES OF POLYOLEFINNANOCOMPOSITES: EFFECT OF COMPATIBILIZER"" |
""5.3. ROLE OF OPTIMUM CLAY MODIFICATION"" |
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Sommario/riassunto |
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Polymer nanocomposites are organic-inorganic hybrids where the high aspect ratio inorganic filler can be delaminated in the organic matrix at the nanometer scale, thus leading to significant enhancement of composite properties at very low filler volume fractions. With the advancement of polymer nanocomposites technology, significant enhancements in mechanical and thermal properties of the composites could be achieved. However, other important properties like gas barrier properties, which form an absolutely necessary requirement for the use of materials in packaging and storage applications, were relatively neglected. By improving the barrier performance of the materials by incorporation of high aspect ratio nano platelets, one can expect to reduce the thickness of the commercial packaging laminates and other materials where thick material is required to be used to provide barrier to various gases. This can thus lead to significant amount of savings in the material costs and can make the polymer materials more light and also transparent as the nano scale dispersed filler would not scatter light. This book examines the factors affecting barrier properties enhancement in polar polymer matrices, which are different from case when non polar polymers are involved, thus indicating that the performance has to be quantised by case-by-case basis. The commonly used conventional models for prediction of permeation reduction are also less representative of the true microstructure of the nanocomposites. Thus the barrier performance of the polymer nanocomposite materials is also explored, separate from the more bulk based mechanical properties. |
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2. |
Record Nr. |
UNINA9911115458303321 |
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Autore |
Heneka Jochen |
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Titolo |
Prozessentwicklung eines industrietauglichen Verfahrens zur Fertigung von vereinzelten LIGA-Mikrobauteilen |
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Pubbl/distr/stampa |
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KIT Scientific Publishing, 2015 |
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Descrizione fisica |
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1 online resource (VII, 211 p. p.) |
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Collana |
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Schriften des Instituts für Mikrostrukturtechnik am Karlsruher Institut für Technologie / Hrsg.: Institut für Mikrostrukturtechnik |
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Soggetti |
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Technology: general issues |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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This work deals with the development of an industry suited process aiming on the fabrication (based on the LIGA technique) of near net shape, single microparts. Those microparts should lead to new innovative ideas and thus to successful products on the market. |
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3. |
Record Nr. |
UNINA9911141591103321 |
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Titolo |
The ageing societies of Central and Eastern Europe : some problems - some solutions / / editors: Andreas Hoff, Jolanta Perek-Biaas |
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Pubbl/distr/stampa |
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Krakow, : Jagiellonian University Press, 2008 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (181 pages) : digital, PDF file(s) |
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Altri autori (Persone) |
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Perek-BialasJolanta |
HoffAndreas |
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Disciplina |
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Soggetti |
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Older people - Social aspects - Poland |
Aging - Government policy - Poland |
Population aging - Europe, Central |
Population aging - Europe, Eastern |
Age distribution (Demography) - Economic aspects - Europe, Central |
Age distribution (Demography) - Economic aspects - Europe, Eastern |
Older people - Europe, Central |
Older people - Europe, Eastern |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"The book is financed by the Institute of Sociology of the Jagiellonian University." - t.p. verso. |
Research resulting from a collaboration of "scholars from the EAST ("Eastern-European Ageing Societies in Transition") research network ... jointly directed by the OIA [Oxford Institute of Ageing] and the Institute of Sociology, Jagiellonian University Cracow." -- Introduction. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Table of Contents; Introduction: the ageing societies of Central and Eastern Europe; Typology of the European countries by the level of demographic ageing and demographic burden; 1. Introduction; 2. Ranking of the European Countries according to the selected criteria; 2.1. Ranking according to the indicator share of children (aged 0-14); 2.2. Ranking according to the indicator share of older people (aged 65+); 3. Typologization of the European Countries according to the main indicators of demographic burden; 3.1. Classification according to variables (1) and (2) |
3.2. Classification according to variables (3) and (4) 4. Conclusion; A |
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comparative analysis of informal networks among older people in Eastern and Western European states; 1. Introduction; 2. Background; 3. Methodology; 3.1. Research Questions; 4. Frequency of family contact; 4.1. Contact with adult child; 4.2. Contact with close relative; 4.3. Marital status; 5. Household and family size; 5.1. Number of persons in household; 5.2. Childlessness; 5.3. Living alone with infrequent contact with adult child; 6. Social networks; 6.1. Kin and non-kin social support networks |
6.2. Non-kin based social networks 7. Other variables associated with frequency of family contact; 7.1. Geographical mobility; 7.2. Labour participation; 7.3. Attitudes to care; 7.4. National expenditure on care; 7.5. National prosperity; 8. Summary and discussion; Sociological perspective on the European anti-discrimination legislation; 1. Introduction; 2. The rationale for adoption of anti-discrimination legislation; 3. Sociological perspective: law as a tool of social change; 4. Characteristics of the Framework Directive; 5. Derogations; 6. Positive duties; 7. Effective enforcement |
8. The defects of the anti-discrimination directive 9. Conclusions; From research on mortality of the aged in Poland before and after transition; 1. Introduction; 2. Life duration models for elderly people; 3. Analysis of mortality among people aged 80 and more in Poland; 4. Mortality modelling for people aged 80 and more; 5. Summary; The relationship between religious practice and quality of life among those at the threshold of older age; 1. Introduction; 1.1. Aim; 2. Methodology; 3. Results; 4. Discussion; 5. Conclusions; Changes of elderly consumers' potential in ageing society of Poland |
1. Introduction 2. The elderly consumers' potential from the perspective of human resource; 3. Elderly people as consumers on the goods and services market; 4. Summary; Demographic change, urban transport and accessibility for elderly in the Czech Republic; 1. Introduction; 1.1. Demographic changes in Czech Republic; 2. Quality of life in the older age; 3. Importance of mobility in old age; 4. Mobility for senior citizens; 4.1. The general objectives of SIZE project; 5. Methodology; 5.1. Hypothesis; 5.2. Target group-oriented approach |
5.3. Geographical and demographical power: 14 SIZE Partners from 8 European countries |
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Sommario/riassunto |
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This book entitled The Ageing Societies of Central and Eastern Europe: Some Problems - Some Solutions wants to contribute to a better understanding of how societies of Central and Eastern Europe are changing and how they are responding to the challenge of even more rapid ageing process than Western Europe. The aim of this book is to present the specific challenges ageing societies in selected Central and Eastern European countries face, with a particular focus on Polish society. Questions to be addressed in this volume include: How does demographic ageing influence societal change? How can we overcome age discrimination? Who will care for increasing numbers of older dependents at a time when the numbers of potential family carers is dwindling? How will family change impact on intergenerational solidarity? How can the specific skills of the young and the old be combined in the workplace? How are policy makers and politicians dealing with the ageing issues? How can the public pensions systems be made financially sustainable to prevent poverty and social exclusion of older people? |
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